ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1969.tb01618.x

出版商:Blackwell Publishing Ltd    

年代:1969

数据来源: WILEY

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1969.tb01619.x

出版商:Blackwell Publishing Ltd    

年代:1969

数据来源: WILEY

摘要:

A methyl methacrylate composition of exactly zero birefringence has been developed and the technique of its application to the sandwich method with a birefringent layer of Araldite is described in detail with special consideration of the problems of cementing the two different materials. Tensile and bending tests on bars with stress concentrations demonstrate the validity of the method.

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1969.tb01620.x

出版商:Blackwell Publishing Ltd    

年代:1969

数据来源: WILEY

摘要:

Commercial Perspex and “Perspex” of zero birefringence are applied in an investigation by the sandwich technique of the stress in a transverse section of a container from which lead is extruded through a die. The use of commercial Perspex in this application is shown to give rise to errors which are avoided by the new material of zero birefringence. The principal stresses in the birefringent layer of the sandwich are evalua

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1969.tb01621.x

出版商:Blackwell Publishing Ltd    

年代:1969

数据来源: WILEY

摘要:

The use of optically isolated layers within a complex three‐dimensional model permits a photoelastic analysis in their planes at room temperatures. A programme was undertaken to determine experimentally the state of stress in, and the structural behaviour of a portion of the aft bulkhead of an Fill aircraft in order to improve the fatigue life of the component. Information obtained about its behaviour under load clearly indicates the usefulness of this technique as a design tool; its general advantages and disadvantages are discussed by comparison with the stress freezing and slicing techniqu

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1969.tb01622.x

出版商:Blackwell Publishing Ltd    

年代:1969

数据来源: WILEY

摘要:

The design and development of a strain gauge load cell suitable for use under high hydrostatic pressures is described and the method of bonding the resistance strain gauges is given in detail.

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1969.tb01623.x

出版商:Blackwell Publishing Ltd    

年代:1969

数据来源: WILEY

摘要:

A megohmmeter capable of measuring insulation resistances between 0:1 and 100 megohm at temperatures up to 900°C is described and its main electric circuits are indicated

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1969.tb01624.x

出版商:Blackwell Publishing Ltd    

年代:1969

数据来源: WILEY

摘要:

A design of loading shackles for a tensile testing machine is described, that distributes the concentrated force of the machine uniformly over 6‐in width. Each shackle consists of two 6‐in beams connected to the loading points by tensile strips of different cross‐sections so that the loading points carry equal forces and remain at the same level relative to each

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1969.tb01625.x

出版商:Blackwell Publishing Ltd    

年代:1969

数据来源: WILEY

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1969.tb01626.x

出版商:Blackwell Publishing Ltd    

年代:1969

数据来源: WILEY

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1969.tb01627.x

出版商:Blackwell Publishing Ltd    

年代:1969

数据来源: WILEY