Exact expressions are obtained for the displacement field in a homogeneous isotropic elastic half space whose surface is subjected to a unit normal pressure. The load emanates from a point and expands nonuniformly and radially outwards. The displacement field is obtained in the form of triple integrals over finite ranges. Both accelerating and decelerating loads have been considered. Wave front surfaces with their regions of existence have been identified. First motion approximations near different wave arrivals have been obtained by a limiting process and do not involve any integration. © 1979.

A ROY

University of Calcutta (informally known as Calcutta University or CU) is a collegiate public state university located in Kolkata, West Bengal, India.&nbsp;Within India it is recognized as a &quot;Five-Star University&quot; and accredited &quot;A&quot; Grade by National Assessment and Accreditation Council.

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The University of Calcutta has secured the Fifth position among the Universities of India in the prestigious &quot;Indian University Ranking 2019&quot; list, released by the NIRF of the Ministry of Human Resource Development, Government of India.

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It was established on 24 January 1857, and was one of the first institutions in Asia to be established as a multidisciplinary and Western-style university. Its alumni and faculty include several heads of state, heads of government, social reformers, prominent artists, only academy award winner and Dirac medal winner in India, many Fellows of the Royal Society and five Nobel laureates as of 2019 which is highest in South Asia.

University Of Calcutta

Response of an elastic solid to nonuniformly expanding surface loads

International Journal of Engineering Science

The response of an elastic half space to a realistic model of faulting is considered. A dislocation is assumed to be developed along a line of finite length and then moves nonuniformly along an inclined plane (fault) surface. Analytical solutions to the surface displacement in the form of double integrals are derived by Cagniard De-Hoop technique. Nature of wave arrivals at the surface are discussed both in case of a decelerating and an accelerating source. First morion responses are obtained near different wave arrivals by a limiting process. © 1978.

Journal	Data powered by TypesetInternational Journal of Engineering Science
Publisher	Data powered by TypesetPERGAMON-ELSEVIER SCIENCE LTD
ISSN	0020-7225