ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1969.tb01597.x

出版商:Blackwell Publishing Ltd    

年代:1969

数据来源: WILEY

摘要:

This article describes some of the history and construction of the Royal Albert Bridge at Saltash, and Isambard Kingdom Brunei's considerations in its design. Modern requirements for the bridge are discussed and a recent investigation including model analysis resulting in structural modification to the bridge for modern traffic is described.

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1969.tb01598.x

出版商:Blackwell Publishing Ltd    

年代:1969

数据来源: WILEY

摘要:

The stress distribution on the surface of a stator vane loaded statically as a cantilever has been obtained by means of brittle coatings, strain gauges and three‐dimensional photoelasticity. A metal prototype was available for the determinations and from this an epoxy model was made by casting. The combination of methods used suggests the most efficient way of stress analyzing this type of structur

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1969.tb01599.x

出版商:Blackwell Publishing Ltd    

年代:1969

数据来源: WILEY

摘要:

Three epoxy resin materials, CT200/PA, CT200/ HHPA and RXE 11, are assessed for their relative merits as model materials for three‐dimensional photo‐elasticity. The method of casting each material is specified and the results of tests to determine the relevant physical constants and the effects of the glass/rubber transition are gi

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1969.tb01600.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.tb01601.x

出版商:Blackwell Publishing Ltd    

年代:1969

数据来源: WILEY

摘要:

There has been considerable interest during recent years on the measurement of strain using the moiré fringe method. This report reviews the techniques of applying grids to specimens and gives details of methods used at NEL. Strain measurements on a simple tensile test specimen using the moiré mismatch technique are compared with those obtained with a Linley extenso‐me

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1969.tb01602.x

出版商:Blackwell Publishing Ltd    

年代:1969

数据来源: WILEY

摘要:

Electrical strain gauges are used for measuring steel and concrete strains in reinforced concrete slabs subjected to short‐term tests to failure. Strain readings are taken on the compression and tension faces of the concrete and on the reinforcing stee

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1969.tb01603.x

出版商:Blackwell Publishing Ltd    

年代:1969

数据来源: WILEY

摘要:

Tests are described for the evaluation of a particular strain gauge/cement combination under steady loading at elevated temperatures over long periods of time. Although the strain gauges showed a relaxation of their reading with time, due to creep of the gauge backing and cement, it proved possible to correct for this effect to within the scatter associated with the specimens and the instrumentation. It is concluded that application of such corrections to other strain gauge/cement combinations should be possible.

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1969.tb01604.x

出版商:Blackwell Publishing Ltd    

年代:1969

数据来源: WILEY

摘要:

A simple short‐range telemetering system has been adapted for use with strain gauges and two applications are described, a transducer measuring displacements and a circuit with two semi‐conductor gauges measuring torque on a sh

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1969.tb01605.x

出版商:Blackwell Publishing Ltd    

年代:1969

数据来源: WILEY

摘要:

New gauges, new techniques or new operators can be checked by measurement of the gauge factor with a simple circuit which is described and gives direct digital reading of the factor.

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1969.tb01606.x

出版商:Blackwell Publishing Ltd    

年代:1969

数据来源: WILEY