摘要:

The steady-state two-dimensional sliding contact of a half-space by a rigid indentor subject to Coulomb friction is considered. Coupled thermoelasticity governs, and the indentor translates at any constant speed. Results show the existence of three distinctive sliding speeds in addition to those found for frictionless isothermal sliding and speed ranges for physically acceptable solutions that differ from their frictionless isothermal counterparts. Results also show that friction defines surface temperature change outside the contact zone for subsonic sliding but that such change occurs in the transonic case whether friction exists or not. Transonic sliding also exhibits a speed at which no temperature change occurs anywhere in the half-space, while surface temperature change for supersonic sliding occurs only on the contact zone and is always positive.

ISSN:0149-5739    

DOI:10.1080/01495730050130039

出版商:Informa UK Ltd    

年代:2000

数据来源: Taylor

摘要:

The disturbance due to a time-harmonic normal point load and thermal source in a homogeneous isotropic thermoelastic, half-space is investigated by applying the Hankel transform technique in the context of generalized theories of thermoelasticity. The inverse transform integrals are evaluated using Romberg integration with adaptive stepwise after using the results from successive refinements of the extended trapezoidal rule followed by extrapolation of the results to the limit when the step-size tends to zero. The displacement, temperature, and stresses so obtained in the physical domain are computed numerically and presented graphically in Figures 1-12 in different situations for Aluminium-epoxy composite material. A comparison of the results for different theories of generalized thermoelasticity is also presented.

ISSN:0149-5739    

DOI:10.1080/01495730050130048

出版商:Informa UK Ltd    

年代:2000

数据来源: Taylor

摘要:

Thermoviscoelastic interactions in an infinite homogeneous viscoelastic medium with a spherical cavity are studied. The cavity surface is subjected to a periodic loading and zero temperature change. The classical dynamical theory of thermoelasticity as well as the generalized theories of thermoelasticity are applied to consider the thermoelastic coupling. The analytical expressions for the closed-form solutions of displacement, temperature, and stresses are obtained; and the thermal relaxation effects on the interactions are studied to compare the three theories. The numerical values of the physical quantities are computed for a suitable material. The results are presented graphically to illustrate the problem.

ISSN:0149-5739    

DOI:10.1080/01495730050130057

出版商:Informa UK Ltd    

年代:2000

数据来源: Taylor

摘要:

The present article extends the integrated photoelasticity technique for the case where stresses are due to an unknown axisymmetric temperature field. Relationships that express radial and circumferential stresses through the axial and shear stresses are derived. Since residual stresses in glass can be described by the equations of thermoelasticity, the results of this article offer a means for complete determination of the residual stresses in axisymmetric glass articles using integrated photoelasticity. The results are verified by numerical and physical experiments.

ISSN:0149-5739    

DOI:10.1080/01495730050130066

出版商:Informa UK Ltd    

年代:2000

数据来源: Taylor

ISSN:0149-5739    

DOI:10.1080/01495730050130075

出版商:Informa UK Ltd    

年代:2000

数据来源: Taylor