Results 161 to 170 of about 2,462 (206)

The relationships between multiaxial loading history and tibial strains during load carriage

Journal of Science and Medicine in Sport, 2019
To determine if a history of exercise involving multiaxial loading, through soccer participation, influences tibial stains during incremented load carriage.Cross-sectional study.20 female soccer players (20±1 yr) and 20 mass- and height-matched healthy women (21±1 yr) participated in walking tasks with 0kg, 10kg, 20kg, and 30kg loads on a force ...
Julie M. Hughes, D. Clark Dickin, He Wang   +2 more
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Fatigue of honeycombs under in-plane multiaxial loads

Materials Science and Engineering: A, 2001
Abstract Modeling for fatigue of honeycombs under in-plane multiaxial loads is proposed and presented here. Paris law for microcrack propagation, Basquin law for high cycle fatigue and Coffin–Manson law for low cycle fatigue are employed to describe the fatigue of solid cell walls within honeycombs, respectively.
Jong-Shin Huang, Shi-Yi Liu
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Material hardening under multiaxial creep loading

Nuclear Engineering and Design, 1992
Abstract Real components in operation are exposed to cyclic multiaxial loadings. For the evaluation of the allowable operation time the effect of those cyclic loadings on deformation and creep strain behaviour must be derivated. The theoretical discussion of strain-, time- and energy-hardening theory and their mathematical description by creep laws ...
H.J. Penkalla, F. Schubert, H. Nickel
openaire   +1 more source

A New Criterion for Evaluating Multiaxial Fatigue Damage under Multiaxial Random Loading Conditions

Advanced Materials Research, 2014
Generally, mechanical components or structures are subjected to random and a three-dimensional stress state; there are very few field loading paths which can be experimentally fully simulated in laboratory. Loading path parameters such as load sequence, stress level or proportionality/non-proportionality presences are unknown variables with unknown ...
Vitor Anes, Luís G. Reis, Manuel de Freitas   +2 more
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On plastic deformation and fatigue under multiaxial loading

Nuclear Engineering and Design, 1996
This paper presents an experimental and theoretical investigation of deformation and fatigue behaviour under multiaxial random loading. The inelastic stress-strain response under complex loading paths has been predicted using an incremental plasticity model, which incorporates a memory rule to account for the variable-amplitude and non-proportional ...
C.H. Wang, M.W. Brown
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Damage evolution rule for multiaxial variable loading

1998
The damage accumulated within the material element is associated with the physical plane and predicted by the contact stress or strain rule. For singular stress or strains regimes a nonlocal failure or damage rule is used. The application to both monotonic and variable loading is provided.
Zenon Mróz, Andrzej Seweryn
openaire   +1 more source

Buckling Tests of Cylindrical Composite Shells in Multiaxial Loading

AIAA SCITECH 2025 Forum
Thin-walled cylindrical composite shells are prone to buckling failure in a variety of load cases. The number of influencing factors and comparably small amount of test data on combined load cases, which regularly occur in application, pose a major design challenge.
Stefan Panek, Niklas Reuter, Tobias S. Hartwich, Benedikt Kriegesmann, Dieter Krause   +4 more
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Failure of cellular foams under multiaxial loading

Composites Part A: Applied Science and Manufacturing, 2002
Abstract A thorough investigation of the mechanical behavior of a closed-cell cellular foam (Divinycell) under multiaxial stress conditions was undertaken. Two types of Divinycell, H100 and H250, with densities of 100 and 250 kg/m3, respectively, were investigated.
E.E Gdoutos, I.M Daniel, K.-A Wang
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Multiaxial Fatigue Under Variable Amplitude Loads

Journal of Engineering Materials and Technology, 1999
Multiaxial fatigue under variable amplitude loading is investigated using Kandil et al.’s parameter, rainflow cycle counting on the shear strain history, and the Miner-Palmgren damage rule. Fatigue data are obtained on tubular specimens of S45C steel under proportional and nonproportional tension-torsion loading.
Kim, KS, Park, JC, Lee, JW
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A Comparison of Creep Theories for Multiaxial Loading of Polyethylene

Transactions of the Society of Rheology, 1971
Several creep theories are investigated for multiaxial loading of high-density polyethylene, a slightly cross-linked polymer demonstrating a nonlinear stress-strain-time relationship. Among the theories considered are nonlinear viscoelastic models, isochronous stress-strain diagrams employing a hyperbolic sine relationship, and multiple integral ...
R. L. Brown, O. M. Sidebottom
openaire   +1 more source