Internal Stresses in Laminated Construction (1923)
NASA Technical Reports Server (NTRS) · leaf 20
nt of internal stress appeared when tests were made on them directly on leaving the glue room, and further conditioning brought practically all results within the strength variation for this species. Yellow poplar (pi. 12). Specimens were made of plain-sawed material. This species is easily… … cent reduction in strength, but in nearly all cases this was reduced by further conditioning, indicating the dying out of stresses. Northern white oak (pi. 15). Specimens were made of quarter-sawed material. This species changes moisture content slowly, and possesses high tangential tensile…
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