Results 241 to 250 of about 382,729 (291)

Creep rupture under non-proportional loading

Acta Metallurgica, 1980
Abstract The quasi-empirical metallurgical theory of Dyson and McLean have been used to predict the behaviour of virgin Nimonic 80A tubes tested at 750°C under reverse torsion creep. The same theory has been modified to describe the behaviour of pre-strained Nimonic 80A tubes tested under conditions of constant and reverse torque.
D.R. Hayhurst, W.A. Trampczynski, F.A. Leckie   +2 more
openaire   +1 more source

General non-proportional loading behavior of soils

International Journal of Plasticity, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tsutsumi, S., Hashiguchi, K.
openaire   +2 more sources

LOW‐CYCLE FATIGUE UNDER NON‐PROPORTIONAL LOADING

Fatigue & Fracture of Engineering Materials & Structures, 1996
Abstract—A series of strain‐controlled, low‐cycle fatigue experiments have been conducted on 42CrMo steel under various loading paths including circular, square, cruciform, and rectangular paths. Present experiments have shown that there is additional hardening under non‐proportional cyclic loading.
X. Chen, Q. Gao, X.‐F. Sun
openaire   +1 more source

Total deformation theory for non-proportional loading

International Journal of Pressure Vessels and Piping, 1998
Abstract This study presents a technique to apply a total deformation theory to non-proportional loading cases. A total deformation theory capable of analyzing a sequence of linear non-proportional load steps is proposed. Each linear loading path is defined with reference to its previous loading path, analogous to proportional loading.
H. Jahed, S.B. Lambert, R.N. Dubey
openaire   +1 more source

Stability of unbraced frames under non-proportional loading

Structural Engineering and Mechanics, 2001
This paper discusses the elastic stability of unbraced frames under non-proportional loading based on the concept of storey-based buckling. Unlike the case of proportional loading, in which the load pattern is predefined, load patterns for non-proportional loading are unknown, and there may be various load patterns that will correspond to different ...
L. Xu, Y. Liu, J. Chen
openaire   +1 more source

Fatigue-based topology optimization with non-proportional loads

Computer Methods in Applied Mechanics and Engineering, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Shanglong Zhang, Chau Le, Arun L. Gain, Julián A. Norato   +3 more
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Ductile fracture under proportional and non-proportional multiaxial loading

International Journal of Solids and Structures, 2021
Abstract This paper revisits proportional and non-proportional experiments performed earlier by the authors, with the aim to establish the fracture envelope of the material. The experiments involved inflation of thin-walled AA6260-T4 tubes under axial force and internal pressure.
Madhav Baral, Yannis P. Korkolis
openaire   +1 more source

Fatigue crack propagation under non-proportional mixed mode loading

Engineering Fracture Mechanics, 1999
Abstract Under non-proportional mixed I+II loading, two kinds of stable crack propagation may be distinguished. An existing precrack will either kink, mode I controlled (tensile mode), or will propagate, coplanarly mode II controlled (shear mode). Shear mode growth will occur if the effective mode II range exceeds the material-specific threshold Δ K
R Plank, G Kuhn
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Non-proportional loading of Nylon 66 at room temperature

International Journal of Plasticity, 1998
Abstract Tubular specimens of commercial Nylon 66 were subjected to non-proportional loading in strain control at room temperature. All tests were performed in a servohydraulic, computer-controlled, MTS axial-torsion mechanical testing machine using a biaxial clip-on extensometer.
E. Krempl, C.M. Bordonaro
openaire   +1 more source

Sequentially linear analysis of fracture under non-proportional loading

Engineering Fracture Mechanics, 2008
Sequentially linear analysis avoids convergence problems typical of non-linear finite element analysis by directly specifying a damage increment instead of a load or displacement increment. A series of linear analyses is used to model highly non-linear behavior without an iterative solution algorithm. The primary contribution herein is the extension of
Matthew J. DeJong, Max A.N. Hendriks, Jan G. Rots   +2 more
openaire   +1 more source