24小时热门版块排行榜    

查看: 2073  |  回复: 6

beyond1987

铁虫 (初入文坛)

[求助] 木材的应力应变关系是怎样的呀? 已有1人参与

大家有知道的么?
我找了各种书籍和文献,都没有看到有讲木材本构关系的。有没有人有这方面的资料或文献什么的么?有的话发给我一份吧,感激不尽~
回复此楼

» 猜你喜欢

» 本主题相关价值贴推荐,对您同样有帮助:

呵呵~
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

一条小书虫

铁杆木虫 (知名作家)

【答案】应助回帖

感谢参与,应助指数 +1
????????????????????????????????????????????????????????????????????????????
????????????????????????????????о???
2楼2013-02-06 09:24:16
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

ehe333333

木虫 (著名写手)

找到一个别人的实验。自己看看吧。


Materials testing laboratories determine wood strength and stiffness in a standard static-bending test where the test specimen's resistance to slowly applied loads is measured. The standard tests are generally conducted at 12% moisture content and 20° C temperature. The ends of the test specimen are supported on rollers, usually with growth rings horizontal, and a load is applied at the beam centre so that a constant rate of deflection is maintained until the piece fractures. Instruments measure and plots the load (stress) and the deflection (strain) at intervals, as shown in the diagram. The vertical axis reflects the increasing stress and the horizontal axis the increasing strain.

The first part of the curve is a straight line where the deflection is directly proportional to the load and where, once the load is removed, the beam will return to its original state; i.e. it retains its elasticity. With increasing load, a limit point of proportionality is reached after which the increase in amount of deflection is greater than (i.e. no longer proportional with) the increase in load; but elasticity is still retained until an elastic limit is reached. If stress is further increased, the material loses elasticity and becomes plastic (i.e when the load is removed the deformation caused by deflection will be more or less permanent). At the point of maximum load, ultimate load or ultimate strength, the material begins to yield and will fracture unless load is substantially reduced.

stress_strain.gif

3楼2013-02-08 17:20:17
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

手中的沙

金虫 (小有名气)

【答案】应助回帖

《木质资源材料学》 或者各种版本的《木材学》都会有较为详细的介绍的…而且这类文献不是一搜一大把吗…

[ 发自手机版 http://muchong.com/3g ]
4楼2013-02-16 11:56:12
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

匿名

用户注销 (小有名气)

本帖仅楼主可见
5楼2013-03-07 09:43:40
已阅   申请农林EPI   回复此楼   编辑   查看我的主页

yuekong

至尊木虫 (文坛精英)

【答案】应助回帖

跟含水率有关系,总的来说,弯、压,是弹塑性;拉是线弹性

[ 发自手机版 http://muchong.com/3g ]
6楼2013-08-03 19:41:54
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

zyx1989

新虫 (初入文坛)

【答案】应助回帖

请问楼主还有相关资料么?求传一份啊!QQ邮箱:1318270243@qq.com。另外,ehe333333答主发的那篇文章是什么文章?有知道的么?
7楼2021-01-27 19:16:58
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 beyond1987 的主题更新
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[基金申请] 重要消息,中午系统在维护 +11 yuleib84 2026-08-18 12/600 2026-08-20 11:09 by xskun
[基金申请] 哪位老哥知道今年的国自然具体哪一天放榜? +16 Ldrop2023 2026-08-13 20/1000 2026-08-20 11:07 by xskun
[基金申请] 时间戳变了,能看出什么问题? +13 基诺咪客 2026-08-17 17/850 2026-08-20 10:43 by wangyue2015
[基金申请] 只有每年这种时候来逛逛小木虫 +21 yaoyewhu2008 2026-08-20 21/1050 2026-08-20 10:37 by Vivilian
[基金申请] 欢迎发来filecode的Mz6后的代码验证其规律 +55 医学老男孩 2026-08-13 125/6250 2026-08-20 09:02 by 医学老男孩
[基金申请] 今天基金会出结果吗?20260819 +14 kkkl_v 2026-08-19 15/750 2026-08-20 08:21 by sunzitan
[基金申请] filecode,4个jtjc了 +11 ziyangfang 2026-08-19 13/650 2026-08-19 21:28 by aasahr
[教师之家] 为什么余额宝的年化利率越来越低?主要原因有哪些? +5 瞬息宇宙 2026-08-15 5/250 2026-08-19 20:23 by super2002521
[基金申请] 今天放榜吗? +14 布布和一二 2026-08-19 15/750 2026-08-19 18:07 by gltch
[基金申请] filecode=后面第一个是大写字母 +10 wangze12014 2026-08-14 12/600 2026-08-19 16:56 by 苦难博士
[基金申请] 2027广东省杰青 +4 奶牛小黑 2026-08-15 10/500 2026-08-19 11:02 by wanfengnew
[基金申请] 朋友圈看到的 +6 wangzilk 2026-08-18 8/400 2026-08-19 10:55 by Haru815
[基金申请] 快农历七夕节了,轻松一下,男人悄悄话,女施主请不要进来。 +6 Tide man 2026-08-14 7/350 2026-08-19 09:56 by ZJTJZ
[基金申请] 什么时候开奖? +6 CrisMessi 2026-08-18 6/300 2026-08-19 08:06 by Equinoxhua
[基金申请] 时间戳又变了8-15 +14 archvillain 2026-08-15 26/1300 2026-08-18 13:37 by phantomgost
[基金申请] 今天维护系统维护 祝所有人 高中 +8 gjjjzhong 2026-08-18 9/450 2026-08-18 13:01 by 家与远方
[基金申请] 93BebMhtakh前后11位开头都是大写 +4 且听虎啸 2026-08-17 5/250 2026-08-18 00:49 by 蔡棒棒菂
[基金申请] 今天系统多次维护,明天很可能放榜! +8 zju2000 2026-08-16 9/450 2026-08-17 12:20 by lmz0216
[精细化工] 招聘 金属平磨液,抛光液研发工程师 +3 小天0311 2026-08-14 3/150 2026-08-16 07:31 by H9PLUS
[基金申请] 各位道友,我要去昆明玩几天,回来见。 +7 Tide man 2026-08-14 8/400 2026-08-15 01:11 by arzu_hma
信息提示
请填处理意见