This book covers dynamic material mechanics, which focuses on the behavior of materials under time-varying loads, such as impacts, vibrations, and shocks. This is the TOC:
Static load VS dynamic load 3
The basics of dynamic load 4
Deterministic and non-deterministic loads 7
Dead loads and live loads 9
Free vibration, eigen-frequency, and forced vibration 11
Free vibration often take place AFTER forced vibration? 13
Eigenvalue 14
Every structure has a natural frequency? 15
Frequency of ground movement and resonance 17
The key is the rhythm… 18
How to evaluate? 20
Rhythmic vibrations 22
Which frequency is “better”? 23
What are examples of high natural frequency structure and material? 26
Different floors have different natural frequencies – WHY? 29
Mode shapes and material 31
What are examples of low natural frequency structure and material? 34
Stiffness… 36
How to measure resonance? 38
Why resist swaying and bending? 39
How does damping offset vibration in buildings? 41
Types of damping devices 44
Wind load VS earthquake load VS flood load 47
A compromise… 51
Modal complexity 53
Other dynamic loads 55
Why high energy often corresponds to low frequency, and vice versa? 58
All about seismic waves 61
The role of Inertia 64
Dynamic VS static degrees of freedom 66
Multiple resonance 68
Formulating the equations… 69
Mass Matrix Construction 71
Matrices in dynamic systems 73
Evaluating dynamic response 76
Modal time-history analysis, direct integration, and response spectrum analysis 78
Harmonic and periodic excitations 80
High strain rate behaviour 83
Dynamic failure 85