Specimen alignment plays a critical role in material testing. If a specimen is not properly aligned prior to or during testing, the accuracy and the reliability of test results will be directly affected, and, depending on the method followed, results may not be acceptable. This post covers the effect of specimen misalignment on the test data, main reasons behind axial misalignment, and ways to improve alignment precision in mechanical test setups.
Our latest article in the Journal of Applied Physics is freely available for 14 days: https://aip.scitation.org/doi/10.1063/5.0072249
We conducted molecular dynamics simulations of plate impact tests of polyethylene to obtain molecular-level insights on two common approximations associated with the interpretation of shock pressure and spall strength. Our results revealed
(1) The free surface approximation can slightly underpredict the shock pressure in the polymer.
Meshfree analysis on complex geometries using physics-informed deep neural networks
We are reporting nice and simple experiments to assess the reduction of shock energy of an impact passing through methylcellulose hydrogel. The temporary link is:
Artificial Intelligence Center at the Faculty of Electrical Engineering, Czech Technical University in Prague invites applications for Ph.D. candidates interested in cross-disciplinary research between structural dynamics and mathematical optimization.
cdmHUB invites you to attend the Global Composites Experts Webinar Series.
Title: Fiber-Optic-Based In-Process Monitoring of CFRP Structures for Material Quality Assurance
Speaker: Dr. Nobuo Takeda
Time: 1/27, 11AM-12PM EST.
Please go to https://bit.ly/32YoL9Z to register for this webinar.
In the following doi, I share with the community our new tech brief ("selection methodology of femoral stems according to the cross section and the maximum stress") about design of femoral stems, published in the journal of biomechanical engineering of ASME.
doi: https://doi.org/10.1115/1.4053006
