aerospace

Modeling of honeycomb structures in ANSYS

I am trying to simulate a triangular honeycomb unit cell using plate elements. I read some literature in which researchers used S4 elements in ABAQUS to model a similar type of structure. I am using SHELL-181 in ANSYS. Can anyone suggest me the closest element type to S4 in ANSYS?


Mike Ciavarella's picture

1st International IEEE Workshop on Metrology for Aerospace. Benevento, Italy, May, 29-30, 2014.

Dear Colleagues and Friends,

We are pleased to invite you to contribute to the 1st International IEEE Workshop on Metrology for Aerospace. 

The event is co-technical sponsored by two IEEE Societies, AESS and IMS. 
The event includes but is not limited to new technology for metrology-assisted production in aerospace industry, aircraft component measurement, sensors and associated signal conditioning for aerospace, calibration methods for electronic test and measurement for aerospace.


martin.levesque's picture

PhD positions available at Polytechnique Montréal and McGill universities on shot peening with 5 aerospace companies

Ecole Polytechnique and McGill are seeking two PhD candidates for a large project aiming at understanding the effects of shot peening on the fatigue lives of aerospace components. The project involves 8 PhD students that will be working in close collaboration. The project is co-funded by the Canadian goverment and 5 leading aerospace companies located in Montréal. Some projects involve internships at these companies.

We are seeking two students for the following projects:

 


Case Studies in Engineering Failure Analysis - New Journal welcoming submissions!

We are very pleased to announce the launch of a new journal in the field of mechanical engineering, Case Studies in Engineering Failure Analysis. This journal provides a forum for the rapid publication of short, structured Case Studies in Engineering Failure Analysis and related Short Communications and will provide an essential compendium of case studies for practitioners in the field of engineering failure analysis and others who are interested in the ways in which components fail.


Managing Stress Waves over Multi-frequencies and Micro-architectural Design of Materials - Part 1, 2 and 3 available

Watch the 3-part video seminar where Sia Nemat-Nasser discusses certain basic issues regarding systematic homogenization techniques to extract the frequency‐dependent dynamic properties of microstructurally periodic composites, illustrating the results in terms of measureable and experimentally verifiable quantities.  To watch the videos, go to http://tinyurl.com/caudkwp


ICEFA V - Not too late to register at the Early Bird Rate - Deadline 18 May 2012

Fifth International Conference on Engineering Failure Analysis, 1-4 July 2012, Hilton Hotel, The Hague, The Netherlands

To register, go to http://www.icefaconference.com


Tech Brief: Composite Winglet Optimization for Reliability and Robustness

A new tech brief was recently released on composite optimization. See below for additional information:  


Aerospace Customer Papers featuring SIMULIA Solutions

Our Aerospace sector boasts an extraordinary amount of dedicated customers that produce high-quality conference papers year after year on their use of SIMULIA solutions. The papers provide extensive and in-depth coverage of the industry’s most popular topics: aircraft design, structural analysis, landing gear, composite testing, bird-strike and more. Download these select papers from the 2011 SIMULIA Customer Conference to learn more on how industry-leading companies such as Airbus, EADS, and Rolls-Royce Deutschland use Abaqus and Isight. 

Abaqus focused papers:


Water Landing of Space Flight Re-entry Vehicles Using Abaqus/Explicit

Space flight re-entry vehicles need to withstand heavy impact upon landing and it is critical for engineers to understand the effects on the vehicle and the crew to ensure the safety of the mission.  In order to gain this insight, engineers need to be able to model both the space craft structure and the landing medium such as water, sand, clay, etc.

The coupled Eulerian-Lagrangian (CEL) method in Abaqus/Explicit provides the ability for capturing this interaction all within the framework of a single finite element model.  The simulation provides the means to investigate the peak accelerations faced by the crew or the payload during water landing.    


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Water Landing of Space Flight Re-entry Vehicles Using Abaqus/Explicit

Space flight re-entry vehicles impart highly dynamic loads on the crew and/or payload during a water landing. To understand the behavior of the vehicle/payload system as it makes impact, a predictive framework that can simultaneously model the structure, the highly deformable landing medium (water or soil), and their interaction is required. The coupled Eulerian-Lagrangian (CEL) method in Abaqus/Explicit provides the means for capturing these complex physical phenomena. In this Technology Brief, the simulation of a re-entry vehicle water landing will be demonstrated, and strong agreement with test results will be shown.


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Simulation of the Quasi-static Crushing of a Fabric Composite Plate

Composite structures often have a higher capacity for ab-sorbing energy than their metal counterparts. The crush-ing behavior of composite materials is complex, and the inclusion of composite components in vehicles for crash protection can necessitate expensive experimental test-ing. The ability to computationally simulate the crushing response of composite structures can significantly shorten the product development cycle and reduce cost in the aerospace, automotive, and railway industries.


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Bird Strike Simulation on a Wing Slat using Abaqus/Explicit

Bird strikes cost the United States aviation industry tens of millions of dollars annually in aircraft damage and schedule delays. Increasing the ability of the aircraft to resist bird strike induced damage is one part of an overall approach to mitigating this expense [1]. Experimental bird strike testing is part of the certification process for certain aircraft component designs. If a subset of the tests can be replaced with computational simula-tion, the cost of the prototype testing can be reduced. Fur-ther, bird strike resistance considerations can be included in the design process, thus increasing the probability that certification tests will be successful. In this Technology Brief we describe how Abaqus/Explicit has been used to assess the bird impact performance of a wing slat.


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Aircraft Landing Gear Simulation using Abaqus/Explicit

A mechanical system, such as aircraft landing gear, can have a large number of parts that interact in a complex nonlinear fashion. The challenge of simulating such a sys-tem lies not only in capturing the correct physical behavior but in using efficient analysis techniques. Different levels of modeling abstraction may be appropriate for different stages of the design process. Initial sizing and kinematics can be studied with a partially rigid representation, while final designs are more often analyzed with fully meshed flexible geometry.


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Projectile Impact on a Carbon Fiber Reinforced Plate

Composite materials offer significant design advantages in the aerospace industry. High strength and light weight are the two most attractive features for aircraft and space vehicle designs. However, their complex material behav-ior makes analysis of these structures a significant chal-lenge, particularly in a high speed impact event. The ad-vanced composite modeling and industry leading simula-tion capabilities of Abaqus/Explicit make analysis of these challenging materials straightforward and allow accurate prediction of ballistic limit, damage and failure. This tech-nology brief describes an analysis of the dynamic impact of a steel projectile onto a unidirectional carbon fibre rein-forced plate and the specific advantages of Abaqus/Explicit for this type of simulation.


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Buckling and Fracture Analysis of Composite Skin/Stringer Panel Using VCCT

The use of composite materials in the aerospace industry is increasing. Composite materials offer a relatively high strength-to-weight ratio as well as the ability to create large, integrated structures. One composite component can replace 10 or more traditional metal parts, which can dramatically reduce manufacturing time and cost.


International Conference on Mechanical, Automotive and Aerospace Engineering, ICMAAE11

The Faculty of Engineering, International Islamic University Malaysia is organizing this International Conference to bring together researchers and engineering professionals from all over the globe to meet and deliberate in the beautiful green city of Kuala Lumpur.

Date: May 17, 2011 - May 19, 2011
Location: Kuala Lumpur, Malaysia
Web Page: http://www.iiu.edu.my/icmaae/2011/
Contact Email: icmaae@gmail.com
Organizer: Mechanical Engineering Dept., Faculty of Engineering, International Islamic University
Deadlines: December 15, 2010 (abstract), April 1, 2011 (registration)


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