Results 191 to 200 of about 18,069 (225)

Fatigue life estimation under multiaxial loadings

International Journal of Fatigue, 1999
Abstract In this paper, the fatigue strain energy density parameter for the critical plane, proposed by Glinka et al., Fatigue Fract. Engng. Mater. Struct. 1995;18(1):37, is modified so that it can be used to predict the fatigue life of various materials under multiaxial loading.
Wen-Fung Pan, Chao-Yu Hung, Lieh-Lin Chen   +2 more
openaire   +1 more source

Fatigue Life prediction under multiaxial loading

46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, 2005
A unified multiaxial fatigue life model for isotropic and anisotropic materials is proposed. The proposed fatigue model is a critical plane-based model. Most of the earlier models based on the critical plane approach assume that the critical plane only depends on the stress state.
Yongming Liu, Sankaran Mahadevan
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Multiaxial loading of thermoplastic laser welds

Welding in the World, 2016
The number of laser welded applications in industry is rising steadily. For example, laser welding of polymers is used in the automotive, household and medical sectors. In these areas, a high focus on long-term durability and reliability of laser welds is required.
D. Spancken, J. Wacker, A. Büter, T. Melz   +3 more
openaire   +1 more source

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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Failure Prediction for Laminated Composites under Multiaxial Loading

Journal of Reinforced Plastics and Composites, 1999
An analysis for failure prediction is presented for laminated composites under extension and bending. The method is based on the determination of the fiber and matrix strains in each composite lamina. Under combined extension and bending, layer strains in a composite section are computed by means of the laminate theory and used as input for a three ...
Eraslanoglu, G, Anlas, G, Ardic, ES
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A multiaxial fatigue criterion for random loading

Fatigue & Fracture of Engineering Materials & Structures, 2003
ABSTRACTA multiaxial fatigue criterion for random loading is proposed. Firstly, the orientation of the critical plane, where fatigue life estimation is carried out, is determined from the weighted mean position of the principal stress directions. Then, the scalar value of the normal stress vectorN(t) perpendicular to the critical plane is taken as the ...
CARPINTERI, Andrea, SPAGNOLI, Andrea, VANTADORI, Sabrina   +2 more
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Multiaxial loading and fatigue lifetime in LCF

Materials Testing, 2004
Abstract Generally, most machine parts are loaded with a combination of different variable forces and moments. This often causes a state of multiaxial stress in the fatigue critical areas of the parts. In most cases, a nonproportional cyclic multiaxial state of stress occurs.
Arash Amadi, Harald Zenner
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Treatment of Multiaxial Loading

2009
Abstract This chapter addresses the question of how to deal with multiaxial stresses and strains when using the strain-range partitioning method to analyze the effects of creep fatigue. It is divided into three sections: a general discussion on the rationale used in formulating rules for treating multiaxiality, a concise listing of the ...
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Energy dissipation under multiaxial thermomechanical fatigue loading

International Journal of Fatigue, 2013
Abstract The paper presents an approach to the energy dissipation calculation under arbitrary multiaxial thermomechanical fatigue (TMF) loading. In such an approach the total area of plastic hysteresis loops is taken as a measure of dissipated energy. The calculation is based on the concept of the developed temperature dependent Prandtl type operator.
Aleš Gosar, Marko Nagode
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Plastic flow under multiaxial cyclic loading

Experimental Mechanics, 1986
An experimental study of the inelastic behavior of annealed aluminum alloy 6061-T6 tubular specimens subjected to combined axial and torsional stress cycles is presented. Particular attention is paid to the question of how plastic strain is developed and how the yield surface moves along the 90-deg out-of-phase stress cycle.
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