Results 181 to 190 of about 23,173 (239)

MEAN STRESS EFFECTS IN MULTIAXIAL FATIGUE

Fatigue & Fracture of Engineering Materials & Structures, 1995
Abstract A multiaxial fatigue strain energy density parameter has been formulated which normalizes fatigue data obtained under a variety of mean stress levels and loading combinations. This parameter represents that proportion of the overall strain energy contributed by the stresses and strains on the critical or fracture plane.
G. Glinka, G. Wang, A. Plumtree
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Multiaxial Loads and Stresses

2017
Many design tasks are concerned with structural components or systems subject to multicomponent loads. In this case, several forces and moments, which are partially time-independent, can act on the structural component to be evaluated. The local stress state and its variation with time at relevant locations result from the superposition of the local ...
Michael Köhler, Sven Jenne, Kurt Pötter, Harald Zenner   +3 more
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Multiaxial Stress Concentration in Filleted Shafts

Journal of Mechanical Design, 2000
In a previous paper, popular stress concentration factor charts for shoulder filleted shafts in bending and tension were shown to be in error, and more accurate solutions were published. In this paper, improved stress concentration factor information is presented for torsional loading, based on detailed finite element analyses.
Radovan Rolovic, Steven M. Tipton, James R. Sorem,   +2 more
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Multiaxial Stress-Strain Notch Analysis

2000
Fatigue and durability analyses require the use of analytical and/or numerical methods for calculating elastic-plastic notch tip stresses and strains in bodies subjected to nonproportional loading sequences. The method discussed in the paper is based on the incremental relationships, which relate the elastic and elastic-plastic strain energy densities ...
A Buczynski, G Glinka
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Fatigue Strength Prediction under Multiaxial Stress

Journal of Composite Materials, 1999
A multiaxial fatigue failure criterion for composite materials is presented in this paper along with an assessment of the capability it offers for design under multiaxial constant or variable amplitude stresses. The applicability of this criterion, based on the well known quadratic failure tensor polynomial criterion for static loading, is validated ...
T. P. Philippidis, A. P. Vassilopoulos
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The Multiaxial Equivalent of Stressed Volume

1994
A comprehensive probabilistic fracture analysis methodology should allow data to be combined or pooled from multiple specimen sizes and geometries such that all available fracture data can be integrated into strength/probability estimates and such that size-scaling aspects of the model can be tested.
WT Tucker, CA Johnson
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Behavior of Concrete under Multiaxial Stress States

Journal of the Engineering Mechanics Division, 1980
Differences in the observed behavior of concrete under multiaxial stress states can be ascribed to either different materials or different test methods. In order to isolate the effects of these two variables, seven institutions cooperated in a test program in which specimens of indentical material were subjected to variety of biaxial and triaxial ...
Kurt Berlin Gerstle, Roger M. Zimmerman, Helmut Winkler, Leonard A. Traina, Michael A. Taylor, Gerald Schickert, Pio Rossi, John B. Newman, Diethelm Linse, Hon-Yim Ko, Michael D. Kotsovos, Paolo Bertacchi, Roberto Bellotti, Helmut Aschl   +13 more
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Notched Fatigue Behavior under Multiaxial Stress States

Advanced Materials Research, 2014
Most engineering components and structures contain stress concentrations, such as notches. The state of stress at such concentrations is typically multiaxial due to the notch geometry, and/or multiaxiality of the loading. Significant portions of the fatigue life of notched members are usually spent in crack initiation (crack formation and microscopic ...
Nicholas R. Gates, Ali Fatemi, Darrell F. Socie, Nam Phan   +3 more
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Behaviour of concrete under multiaxial stresses — A review

Cement and Concrete Research, 1979
Abstract The purpose of the present paper is to provide a survey of the behaviour of concrete, as determined by experimental research. After a description of the difficulties encountered in the experimental investigation of concrete, the experimentally determined behaviour under one, two and three dimensional stress systems is treated. An explanation
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Multiaxial Stress Rupture Criteria for Ferritic Steels

1989
Many ferritic steels become ‘creep-brittle’ after long times at high temperatures. This paper is concerned with the behaviour of such steels under multiaxial stressing, which is the type of loading that they invariably encounter in service in power and process plant applications.
P. F. Aplin, G. F. Eggeler
openaire   +1 more source