5プライ集成材の曲げ強度予測確率モデル(<小特集>木質材料小特集)

概要

論文の詳細を見る
A probabilistic model was developed for predicting the bending strength of 5 ply glulam (beam depth:10〜12 cm) by using the distridution of the modulus of elastisity (MOE) of laminae. A random number generation method assuming relationship between the MOE and the modulus of a lamina was represented by weighted regression line and a standard error was proportional to the square root of the MOE was used in the model.In order to validate the model, a distribution of bending strenght of twenty eight kinds of 5 ply glulam (four species, seven arrangement of laminate) was predicted, and the results were compared with the actual test data kolmogorov-Smirnov (K-S) tests were conducted to ascertain the compatibility between the predicted snd the actual bending strength of the glulam. In twenty three predictions out of the twenty eight,a null hypothesis"The actual test date could be the samples from the predicted distribution."were rejected over the 20 percent critical value.
社団法人日本材料学会の論文
1990-09-15