Results 71 to 80 of about 8,447 (307)

Nondestructive Testing of Welded Composite Metal Foams

Advanced Engineering Materials, EarlyView.
X‐ray computed tomography (CT) is used to evaluate welded steel–steel composite metal foam (CMF) joints of two density classes. It reports variation in postweld spatial void distribution and correlates it to weld‐induced changes, mechanical performance, and failure within welded CMF panels.
Chinmaya Prerana Inguva, Aman Kaushik, Afsaneh Rabiei   +2 more
wiley   +1 more source

Phase-field modeling for anisotropic ductile damage of magnesium alloys at finite deformations

Journal of Magnesium and Alloys
The damage anisotropy of an extruded ZK60 Mg alloy is characterized using tensile tests and scanning electronic microscopy. The accumulation of anisotropic deformations leads to the great differences of the dimple evolution and strains at fracture along ...
C. Xie, X.K. He, X. Liu, J.H. Ye, J.B. Chen   +4 more
doaj   +1 more source

A Dislocation Perspective on Strength and Toughness in Ceramics

Advanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

Modelagem da evolução do dano ortotrópico acoplado à elastoplasticidade em metais [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2010Neste trabalho, estuda-se um modelo de dano dúctil tridimensional baseado nos princípios da mecânica
Freitas, Andresa
core  

Validation of the ductile fracture modeling of CGI at quasi-static loading conditions

, 2021
Fracture modeling and experimental validation of Compacted Graphite Iron (CGI) specimens loaded under quasi-static conditions at room temperature are considered.
Josefson, Lennart, RAZANICA, SENAD, Josefson, Lennart,, Larsson, Ragnar,, Larsson, Ragnar, Sjögren, Torsten,, Razanica, Senad,, Sj\uf6gren, Torsten   +7 more
core   +1 more source

Experimental Characterization of Mycelium‐Based Composites Under Multiple Loading Conditions

Advanced Engineering Materials, EarlyView.
This study examines the mechanical response of mycelium‐based composites under compression, shear, and tension using mechanical testing and imaging methods. The comparison between unpressed and hot‐pressed specimens shows that hot pressing is associated with higher compression and shear stiffnesses.
Shaghayegh Elahi, Kimiya Tajik, Harvey Shaw, Matti Isakov, Sami Pajunen, Lauri Rautkari   +5 more
wiley   +1 more source

Ductile fracture prediction in thin-walled structures through a novel damage model

Heliyon
Damage models have significantly advanced predictions of ductile fractures in large, thin-walled structures like automobiles, ships, and aircraft. However, accurately predicting these fractures remains challenging due to variations in strain localization,
Sunghoon Choi, Taehyun Park, Heuisoo Kim, Byeunggun Nam, Byoungwoo Ye, Dongchoul Kim   +5 more
doaj   +1 more source

Some Aspects of Structural Modeling of Damage Accumulation and Fracture Processes in Metal Structures at Low Temperature

Modelling and Simulation in Engineering, 2016
The problem of brittle fracture of structures at low temperature conditions connected to damage accumulation and ductile-brittle transition in metals. The data for locomotive tire contact impact fatigue and spalling are presented.
Valeriy Lepov, Albert Grigoriev, Valentina Achikasova, Kyunna Lepova   +3 more
doaj   +1 more source

A Damage model for the ductile failure analysis of plastic components [PDF]

, 2011
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2011O objetivo deste trabalho é propor um modelo matemático e um sistema computacional, baseado no método dos ...
Mascarenhas, Wesley Novaes
core  

Compatibility of Methacrylate Based Resins Controls Interfacial Failure and Toughness in 3D‐Printed Multimaterial Composites

Advanced Engineering Materials, EarlyView.
This work shows that the mechanical performance of multimaterial digital light processing (DLP) printed thermoset composites is governed by resin compatibility and interfacial design rather than spatial patterning alone. Brittle and ductile resin combinations produced premature interfacial failure, while graded interfaces and mechanically compatible ...
Ahmed M. H. Ibrahim, Li Meng, Ahmad R. Najafi, Nicolas J. Alvarez   +3 more
wiley   +1 more source