The Department of Civil and Environmental Engineering (CEE) invites applications for several tenure-track faculty positions to begin September 2014 or thereafter. Appointments will be at the assistant or untenured associate professor level. In special cases, a senior faculty appointment may be possible. We will consider exceptional candidates in all areas. The candidate should have demonstrated excellence in original research. Faculty responsibilities will include teaching at the graduate and undergraduate levels, developing course materials, student advising, conducting original scholarly research, and supervision of student research. Applicants should hold a Ph.D. by the beginning of employment.
I am trying to perform a pre-stress modal analysis of a cylindrical shell in ABAQUS, and I am unable to transfer data from step-1 to step-2. Due to this
results are the same as the modal analysis of the beam without the
Anybody know the solution of this kind of problem, kindely let me know..
email id: firstname.lastname@example.org
Thanking you in advance
I have a doubt regarding the Hyperelastic and Viscoelastic material modelling in ANSYS using Mooney-Rivlin material constants.
ANSYS theory manual says that for large deformation and large strains, the material modelling (i.e. constitutive behaviour) is same for hyperelastic and viscoelastic. Is it so?
Generally, Mooney-Rivlin material constants are used to model Hyperelastic behaviour (rubber-like materials).
But can I use Mooney-Rivlin material constants, which we get from curve fitting the test data, to also model a viscoelastic material which has large deformation and large strain (10-20%)?
There has been a recent revival of the study of thin elastic rods from the mechanics, physics and computer science communities. From a fundamental perspective, predicticting the geometrically-nonlinear behavior of thin rods in the post-buckling regime is a challenging endeavor. Moreover, there are many modern industrial contexts for which rationalizing the mechanics of thin elastic filamentary structures is both relevant and timely. The role of intrinsic natural curvature of an elastic filament, which is often overlooked, is of particular interest since it can dramatically, quantitatively and qualitatively change the behavior of the system.
1. The Mechanics of thin elastic rods - past and present:
Hi, I am new to this blog & asking for help from you! If any one know that Ansys has 3D composite element that we can use to simulate PCB with Metal Vias (In-plan Fiber glass & epoxy & Out of Plan Metal Cylinders. Tx
It is my pleasure to solicit nominations for the "Eshelby Mechanics Award for Young Faculty". This award, launched last year, is given annually to rapidly emerging junior faculty who exemplify the creative use and development of mechanics. The intent of the award is to promote the field of mechanics, especially among young researchers. While interdisciplinary work that bridges mechanics with physics, chemistry, biology and other disciplines is encouraged, the ideal awardee will demonstrate clear inspiration from mechanics in his/her research.
The award will consist of $ 1500 cash and a commemorative plaque.
I am a student using ansys for solve problems but i have a problem "how to find at which force value the component will be fail". A ball has to pass through a cone and i am intrested to know that force value at which boll will be pass through cone nerrow section while boll diameter is large than small dia of cone.
Plz help me anyone ansys masters
Thanks dear frnd & sir...
Theory of Representations for Tensor Functions—A Unified Invariant Approach to Constitutive EquationsSubmitted by ramdas chennamsetti on Sun, 2013-10-06 14:04.
I am looking for the following paper.
Theory of representations for tensor functions - A unified invariant approach to constitutive equations - Q -S Zheng, Applied Mechanics Reviews, 47(11), 545-587, 1994.
If anyone has this paper, I request you to share.
Hi everybody. Is it possible in ABAQUS to simulate plastic behavior of laminates (fiber reinforced polymer)? In other words, how can I define plasticity properties of a lamina without applying subroutines? tnx
Composite sandwich structures offer several advantages
over conventional structural materials such as lightweight, high
bending and torsional stiffness, superior thermal insulation and
excellent acoustic damping. One failure mechanism in a composite
sandwich structure is the debonding of the composite facesheets from the
core structure. A well-formed adhesive fillet at the interface of the
honeycomb core cell walls and the laminate is a significant factor in
preventing bond failure. In the present work, honeycomb composite
sandwich panels are manufactured using a low-cost
vacuum-bag-pressure-only out-of-autoclave manufacturing process.
CYCOM®5320 out-of autoclave prepreg is used for the facesheet laminates
Preimpregnated fibers or prepregs are widely used to
produce high quality composite parts. One process in particular, known
as cavity molding, is frequently used to process high quality thick
composite details with exceptionally precise dimensions by using a
platen press to apply heat and pressure to rigid tooling and thereby
entice the prepreg within to cure into the shape of the confines of an
internal cavity. The objective of the research described here is to
develop an mathematical model for glass/epoxy prepreg which simulates
the resin flow, heat transfer, consolidation and curing of cavity-molded
flex beams which varies significantly with location. An enhanced
understanding of the mechanisms involved will help significantly improve
Three-dimensional Micromechanical Modeling of Continuous Fiber Reinforced Ceramic Composites with InterfacesSubmitted by prathyush963 on Sun, 2013-10-06 04:14.
Continuous fiber reinforced ceramic composites (CFCCs) are widely used
in high performance and high temperature applications. The behavior of
CFCCs under various conditions is not easily predicted. Micromechanical
modeling of the CFCCs using a representative volume element (RVE)
approach provides useful prediction of the composite behavior.
Conventionally, the effect of the fiber-matrix interface on the
effective property prediction of the CFCCs is not considered in the
micromechanical modeling approach. In the current work, a comprehensive
three-dimensional micromechanical modeling procedure is proposed for
effective elastic behavior estimation of CFCCs. Application of the
micromechanical model for various interfaces has been considered to
Hybrid fiber-reinforced polymer composites have
extensive applications due to their high strength, corrosion resistance,
low maintenance and design flexibility. However, moisture absorbed by
composite components plays a detrimental role in the integrity and
durability of hybrid structure since it can degrade the mechanical
properties and induce interfacial delamination failures. In the current
study, the moisture diffusion characteristics in two-phase
(unidirectional S-glass fiber reinforced epoxy matrix/unidirectional
graphite fiber reinforced epoxy matrix) hybrid composites using moisture
concentration-dependent diffusion method have been investigated. In the
moisture concentration-dependent diffusion method, the diffusion
Large scale, intricate shape parts with widely varying
cross-sections find difficulty in manufacturing using conventional
manufacturing processes. Cavity molding, a process similar to
compression molding is unique and often used in rotorcraft industries to
manufacture thick flex beam composite parts with high viscosity resins.
The curing of thermosetting resins used in these applications is
usually accompanied by an exothermic reaction and excessive heat buildup
during the polymerization reaction can cause internal stresses to
build-up and result in structural defects in thick composite structures.
Process optimization of flex beam composite parts manufactured using
the cavity molding process will result higher quality parts. In this
Penn Institute for Computational Science (PICS) Kickoff Symposium ( October 10, 2013 ) :: FREE RegistrationSubmitted by Dibakar Datta on Sat, 2013-10-05 05:08.
PICS Kickoff Symposium :: October 10, 2013 ;
Registration is free : CLICK HERE
The Penn Institute for Computational Science (PICS) will be holding its Kickoff
Symposium on Thursday, October 10, 2013, from 9:00 AM - 5:00 PM in the Wu & Chen Auditorium.
2014 W. M. KECK INSTITUTE FOR SPACE STUDIES POSTDOCTORAL FELLOWSHIP CALL RELEASED
Application Deadline: NOON PST 02 December 2013
Recently, I am reading several classic works on crystal plasticity. But, it seems to be difficult for me to obtain several very old papers in this area. For example, one of the classic papers on Hall-Petch relation,
Petch, N.J., The cleavage strength of polycrystals. The Iron and Steel Institute, 1953, 174: 25-28. I have tried many ways to get the original paper, but I finally failed. Could someone please send me a copy of this paper? Thanks a lot. Here is my email: email@example.com
Dear Mechanics Colleagues:
We invite you to submit an abstract to a minisymposium on "Nano and Bio Mechanics" for the 2014 USNCTAM, June 15-20, 2014, to be held at Michigan State University. This minisymposium will focus on the development and application of
both experimental techniques and computational models and methods to
problems of interest in the fields of nano and bio mechanics. Topics of
interest will include, but are not limited to:
NEW JOURNAL WELCOMING SUBMISSIONS
To submit your paper, go to http://www.journals.elsevier.com/case-studies-in-structural-engineering/
Note from the Editor, Kourosh Kayvani:
Title: Electro-Mechanical System Design Intern
Category: Internship in Industry
Employer: Schlumberger Technology Corporation
Location: United States, Texas, Sugar Land
Opening Date: 10/01/2013
I am co-organizing the mini-symposium entitled «Multiscale and multifunctional composites: design and identification» in the 13th International Symposium on Multiscale, Multifunctional and Functionally Graded Materials (MM&FGM2014) with Dr. Gilles Lubineau at King Abdullah University of Science and Technology (KAUST).
The purpose of this mini symposium is to gather leading researchers in the area of multiscale and multifunctional composites to discuss design strategies (both experimental and/or computational) for achieving multifunctional composites materials which have the potential to dramatically improve system-level performance and efficiency. Full description is available here: http://fgm2014.poli.usp.br/node/36