Results 31 to 40 of about 7,049 (195)

Influence of projectile shape on dynamic behavior of steel sheet subjected to impact and perforation [PDF]

, 2013
Authors thank Ministry of Science and Higher Education of Poland for financial support under Grants: R00 0097 12. Authors thank also M. Tavian technician in electronics from ENIM for his contribution on the development of the residual velocity ...
JANKOWIAK, Tomasz, KPENYIGBA, K. M., PESCI, Raphaël, RUSINEK, Alexis   +3 more
core   +4 more sources

On Phenomenological Failure Loci of Metals under Constant Stress States of Combined Tension and Shear: Issues of Coaxiality and Non-Uniqueness

Metals, 2019
The present study investigates how the choice of characterization test and the composition of the stress state in terms of tension and shear can produce a non-unique failure locus in terms of stress triaxiality under plane stress conditions.
Cliff Butcher, Armin Abedini
doaj   +1 more source

Numerical Modeling of Stress Disturbance Characteristics during Tunnel Excavation

Advances in Materials Science and Engineering, 2020
The stress state and principal stress axis changes of the stress-field tensor are analyzed during the advancement of a tunnel face on the basis of a given case study of the Jinping II Hydropower Station in China.
Zeqi Zhu, Qian Sheng, Yumin Zhang, Shiwei Liu   +3 more
doaj   +1 more source

FE2 evaluation of stress triaxiality / lode angle dependencies of void growing processes [PDF]

, 2019
This document provides information and instructions for preparing a Full Paper to be included in the Proceedings of COMPLAS 2019 ...
Matsui, Kazumi, Nakamura, Shintaro, Suzuki, Sho, Yamada, Takahiro   +3 more
core  

Size effect on the shear damage under low stress triaxiality in micro-scaled plastic deformation of metallic materials

Materials & Design, 2020
Micro-forming is one of the major micro-manufacturing methods with promising application potentials, in which the damage response and fracture behavior need to be insightfully addressed.
Jilai Wang, Chuanzheng Li, Yi Wan, Chengpeng Zhang, Jiaqi Ran, M.W. Fu   +5 more
doaj   +1 more source

Effect of stress-triaxiality on void growth in dynamic fracture of metals: a molecular dynamics study [PDF]

, 2004
The effect of stress-triaxiality on growth of a void in a three dimensional single-crystal face-centered-cubic (FCC) lattice has been studied. Molecular dynamics (MD) simulations using an embedded-atom (EAM) potential for copper have been performed at ...
A. Needleman, A. Needleman, A. Needleman, A.C.F. Cocks, A.L. Gurson, A.L. Stevens, D.F. Quinn, D.J. Eaglesham, D.J. Oh, D.R. Curran, E. T. Seppälä, E. van der Giessen, F.A. McClintock, F.F. Abraham, H. Andersson, J. Belak, J. Belak, J. Belak, J.D. Eshelby, J.R. Rice, J.Y. Shu, L. Farrisey, M. Gologanu, M. Gologanu, M. Parrinello, M.R. Gungor, P. Ponte Castañeda, P.J. Steinhardt, R. Cortes, R. E. Rudd, R.E. Rudd, R.J. Green, S. Shima, S.W. Sloan, T.W. Barbee, Jr., V. Tvergaard, V. Tvergaard, V. Tvergaard, V. Tvergaard, V. Tvergaard, W.G. Hoover, X.Y. Wu, X.Y. Wu, Y. Huang   +43 more
core   +1 more source

Evaluation of ductile failure models in Sheet Metal Forming

MATEC Web of Conferences, 2016
Traditionally, combination of equivalent plastic strain and stress triaxiality parameters are taken into account when performing characterization of material ductility.
Amaral Rui, Teixeira Pedro, Azinpour Erfan, Santos Abel D., Cesar de Sa J.   +4 more
doaj   +1 more source

Fracture mechanism and failure strain of TA31 titanium alloy for deep-sea pressure hulls based on continuum damage mechanics

Frontiers in Materials, 2023
Titanium alloys has high fatigue resistance, high corrosion resistance, high temperature resistance, and other excellent properties, and have been widely used in deep-sea equipment and aviation industries.
Bowen Zhang, Zhengquan Wan
doaj   +1 more source

Influences of stress triaxiality and forming parameters on microstructural evolution and fracture mechanisms in a Ni–Cr–Mo-based superalloy

Journal of Materials Research and Technology
Hot tensile features in a Ni–Cr–Mo-based superalloy with different notched types are explored. Changes of microstructure and fracture mechanisms with stress triaxiality and tensile parameters are elucidated. Results manifest that the maximum load for the
Daoguang He, Xiaoyang Chen, Y.C. Lin, Xintao Yan, Han Xie   +4 more
doaj   +1 more source

Tube Expansion by Single Point Incremental Forming: An Experimental and Numerical Investigation

Metals, 2021
In this paper, we revisit the formability of tube expansion by single point incremental forming to account for the material strain hardening and the non-proportional loading paths that were not taken into consideration in a previously published ...
Carlos Suntaxi, Gabriel Centeno, M. Beatriz Silva, Carpóforo Vallellano, Paulo A. F. Martins   +4 more
doaj   +1 more source