We analyze the damage initiation, damage progression, and failure during 3-dimensional (3-D) elastoplastic deformations of a fiber reinforced polymeric laminated composite impacted by a low speed rigid sphere, and compare computed results with experimental findings available in the literature. Damage is assumed to initiate when one of Hashin’s failure criteria is satisfied, and its evolution is...

BACKGROUND Hepatic fibrosis is characterized by intense tissue remodeling, mainly driven by matrix metalloproteinases. We previously identified CO3-610, a type III collagen neoepitope generated by matrix metalloproteinase (MMP)-9, and tested its performance as a fibrosis marker in rats with bile-duct ligation. In this study, we assessed whether CO3-610 could be used as a surrogate biomarker of ...

ABAQUS offers the possibility to model non-linear isotropic materials as well as linear anisotropic materials. However, it is not possible to use these two capabilities at the same time in order to model anisotropic hyperelastic materials. Gurvich proposed to model such materials by means of the linear superposition of two fictitious materials: a linear anisotropic, and a hyperelastic isotropic...

A software tool for automated crack onset and growth simulation based on the eXtended Finite Element Method (X-FEM) is developed. This XFA tool for the first time is able to simulate arbitrary crack growth or composite delamination without remeshing. The automated tool is integrated with Abaqus/Standard and Abaqus/CAE via the customization interfaces. It seamlessly works with the Commercial, Of...

A multilink suspension offers a good balance between ride and handling performance and packaging space efficiency. It is also complex in design due to changes in link loading and compliance at high articulation travel. Therefore, geometric and material non-linearity behaviors are important to consider when designing these types of suspension components. Structural topology optimization has been...

The Agilent Cary 610 FTIR Microscope is an infinity-corrected optical system, providing superior sensitivity at high spectral and spatial resolution, fast analyses and maximum productivity. It delivers a selection of measurement modes and provides the complete solution for automated infrared mapping experiments. With many advantages over in-bench FTIR spectroscopic analysis of small (hundreds t...

MetPreg, a composite developed by Touchstone Research Laboratories (Tridelphia, WV), is an aluminum metal matrix composite reinforced by continuous Nextel 610 alumina fibers. The question is, after processing, are the Nextel fibers affected in any way that their strengthening contribution to the composite is reduced? From experimentation and statistical analysis, a strength distribution of pre-...