CHOP 发表于 2025-3-30 08:25:14

Soddy and the Classification of the Elementsar cross-section. This is certainly sensible, for we have the highest bending stresses at the edge, and in the middle, i.e. in the marrow cavity where there is no bone, the stresses are correspondingly equal to zero. (A hollow tree is therefore not so bad, for it too has no bending loads in the midd

Stress-Fracture 发表于 2025-3-30 13:49:12

https://doi.org/10.1007/978-94-009-5297-3he slightest local excess stress which would mean a design weak point and could have painful consequences for it during the tussle. These few preliminary observations make the tiger’s claw — or the claws of predators in general — an attractive object for study. The FEM and the CAO methods were used

Deduct 发表于 2025-3-30 19:49:32

http://reply.papertrans.cn/27/2687/268672/268672_53.png

Induction 发表于 2025-3-30 23:27:01

http://reply.papertrans.cn/27/2687/268672/268672_54.png

CRATE 发表于 2025-3-31 01:08:53

http://reply.papertrans.cn/27/2687/268672/268672_55.png

背心 发表于 2025-3-31 08:11:27

The Right Load Distribution: The Axiom of Uniform Stress and Tree Shape,levant lengths are shown as ‘h’, it being assumed here that the distribution of the wind pressure is proportional to the projected crown area. The bending stresses on the trunk surface can be calculated from these distributions with Eq. (3), assuming a circular trunk cross-section. Now, assuming tha

Graphite 发表于 2025-3-31 12:13:29

Bone Design: Selected Examples,ar cross-section. This is certainly sensible, for we have the highest bending stresses at the edge, and in the middle, i.e. in the marrow cavity where there is no bone, the stresses are correspondingly equal to zero. (A hollow tree is therefore not so bad, for it too has no bending loads in the midd

colostrum 发表于 2025-3-31 15:32:31

Claws and Thorns: Shape-Optimized by Success in the Lottery of Heredity,he slightest local excess stress which would mean a design weak point and could have painful consequences for it during the tussle. These few preliminary observations make the tiger’s claw — or the claws of predators in general — an attractive object for study. The FEM and the CAO methods were used

Apraxia 发表于 2025-3-31 19:36:37

http://reply.papertrans.cn/27/2687/268672/268672_59.png

Nucleate 发表于 2025-3-31 22:47:35

http://reply.papertrans.cn/27/2687/268672/268672_60.png
页: 1 2 3 4 5 [6] 7
查看完整版本: Titlebook: Design in Nature; Learning from Trees Claus Mattheck Book 1998 Springer-Verlag Berlin Heidelberg 1998 Baum.Biomechanik.Dorn.Gestaltoptimier