Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Bertram Stier"'
Publikováno v:
AIAA SCITECH 2023 Forum.
Autor:
Stefanie Reese, Bertram Stier, Brett A. Bednarcyk, Evan J. Pineda, Trenton M. Ricks, Jaan-Willem Simon, Daniel Höwer, Shengkai Yu
Publikováno v:
Journal of Materials Science & Technology. 35:2869-2882
An algorithm which allows the generation of representative volume elements (RVEs) for complex woven and warp-interlaced fiber-reinforced composite topologies while avoiding unphysical tow intersections is presented. This is achieved by extending an e
Autor:
Ibrahim Kaleel, Erasmo Carrera, Stephen Jones, Andrew C. Bergan, Brett A. Bednarcyk, Scott E. Stapleton, Bertram Stier, Marco Petrolo
Publikováno v:
Mechanics of Advanced Materials and Structures. 28:791-811
Despite the proliferation of high fidelity finite-element (FE) models, lower fidelity models remain commonly used in adhesively bonded joint design. These design models can save both computational ...
Publikováno v:
AIAA Scitech 2020 Forum.
Publikováno v:
Computational Mechanics. 60:445-463
Predicting progressive damage in composite materials is essential for the design of most lightweight constructions. When laminated composite structures are considered, both intralaminar and interlaminar (delamination) damage evolution need to be addr
Autor:
Scott E. Stapleton, Bertram Stier, Andrew C. Bergan, Sara Najafian, Stephen Jones, Brett A. Bednarcyk
Publikováno v:
American Society for Composites 2019.
This study shows two semi-analytical models for rapid joint sizing and design, where the adhesive is modeled as a foundation of continuous linear shear and normal springs, and how the virtual crack closure technique (VCCT) has been applied to both mo
Autor:
Babak Farrokh, Andrew C. Bergan, Bertram Stier, Stephen Jones, Kenneth N. Segal, Brett A. Bednarcyk, David W. Sleight, Alana Zahn, Scott E. Stapleton
Publikováno v:
AIAA Scitech 2019 Forum.
Analytical or semi-analytical models for stress analysis have long been a part of initial adhesive bond design and sizing. Even with the rise of general finite element software and methods, these design models have still remained a preferred method f
Autor:
Bertram Stier, Evan J. Pineda, Lucas R. Hansen, Brett A. Bednarcyk, Paria Naghipour, Anthony M. Waas, Steven M. Arnold
Publikováno v:
Journal of Composite Materials. 51:1433-1454
The generalized method of cells (GMC) is demonstrated to be a viable micromechanics tool for predicting the deformation and failure response of laminated composites with and without notches subjected to tensile and compressive static loading. Given t
Publikováno v:
Finite Elements in Analysis and Design. 110:43-57
Asphalt concrete (AC) is a composite material consisting of bituminous binders, mineral aggregate, and voids. Experimental and computational efforts to assess the bulk mechanical properties of AC ubiquitously raise the question of representative samp
Publikováno v:
Mechanics of Materials. 92:261-274
Unidirectional fiber-reinforced composites have been widely used over the past several decades in industry due to their high specific strength and superior fatigue characteristics. In order to predict their overall mechanical properties, typically, a