Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Commercialisation of impression creep testing
Impression creep testing is a technique in which the deformation resulting from load applied via a rectangular indenter can be converted relatively straightforwardly into a proxy for creep minimum strain rate. This offers a valuable route to assess the creep performance ranking of in-service high temperature plant materials for a number of reasons: the small specimen size makes extraction feasible without significantly affecting the structural integrity of plant; the possibility to test a single specimen at several stresses or temperatures enables multiple assessments; and, increasingly, the maturity of underlying technical understanding and quality of results increases confidence in the technique. However, the method is not without challenges, in particular the capital and running costs associated with servo-electric test rigs. Development of a bespoke deadweight loaded testing system at Wood (formerly Amec Foster Wheeler) has enabled commercially sustainable impression creep testing, which has been successfully applied to ex-plant Grade 91 steel.
Commercialisation of impression creep testing
Impression creep testing is a technique in which the deformation resulting from load applied via a rectangular indenter can be converted relatively straightforwardly into a proxy for creep minimum strain rate. This offers a valuable route to assess the creep performance ranking of in-service high temperature plant materials for a number of reasons: the small specimen size makes extraction feasible without significantly affecting the structural integrity of plant; the possibility to test a single specimen at several stresses or temperatures enables multiple assessments; and, increasingly, the maturity of underlying technical understanding and quality of results increases confidence in the technique. However, the method is not without challenges, in particular the capital and running costs associated with servo-electric test rigs. Development of a bespoke deadweight loaded testing system at Wood (formerly Amec Foster Wheeler) has enabled commercially sustainable impression creep testing, which has been successfully applied to ex-plant Grade 91 steel.
Commercialisation of impression creep testing
Gallacher, T. (Autor:in) / Eaton-McKay, J. (Autor:in) / Brett, S. (Autor:in) / Jacques, S. (Autor:in) / Austin, C. (Autor:in) / Wisbey, A. (Autor:in)
10.09.2018
doi:10.5334/uproc.19
Ubiquity Proceedings; Vol. 1 No. S1 (2018); 19 ; 2631-5602
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
| British Library Online Contents | 1994
Impression creep technique-An overview
| British Library Online Contents | 2005
Impression Creep Tests as Index Creep Testing Technique in Rock Mechanics and Rock Engineering
| Springer Verlag | 2024
Impression creep of a viscous layer
| British Library Online Contents | 2001
Technical Note: Experimental techniques for Impression Creep and Small Punch testing
| BASE | 2018