Mechanical stress & strain

Mechanical stress & strain of a book. Also see these illustration of strain with a book.

Edit and compile if you like:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
% Author: Izaak Neutelings (December 2020)
\documentclass[border=3pt,tikz]{standalone}
\usepackage{physics}
\usepackage{graphicx}
\usepackage{tikz}
\usetikzlibrary{angles,quotes} % for pic (angle labels)
\tikzset{>=latex}
\colorlet{mydarkblue}{blue!40!black}
\colorlet{myblue}{blue!70!black}
\colorlet{myred}{red!65!black}
\colorlet{vcol}{green!45!black}
\tikzstyle{book}=[brown!20!black,fill=brown!80!black!95]
\tikzstyle{vvec}=[->,very thick,vcol,line cap=round]
\tikzstyle{force}=[->,myred,very thick,line cap=round]
\def\tick#1#2{\draw[thick] (#1)++(#2:0.12) --++ (#2-180:0.24)}
\begin{document}
% BOOK straight
\def\W{2.0}  % total width
\def\H{1.5}  % total height
\def\N{30}   % number of layers
\def\t{0.04} % thickness
\begin{tikzpicture}
  \foreach \i [evaluate={\ya=(\i-1)*\H/\N; \yb=\i*\H/\N;}] in {1,...,\N}{
    \draw[line width=0.05] (0,\ya) |- (\W,\yb) to[out=-110,in=110] (\W,\ya) -- cycle;
  }
  \draw[fill=white,rounded corners=0.4,line width=0.05]
    (0,0) rectangle (\t/2,\H);
  \draw[brown!20!black,fill=brown!70!black,rounded corners=0.2,line width=0.2]
    (0,0) -| (1.01*\W,-\t) -| (-\t,\H+\t) -| (1.01*\W,\H) -| cycle;
\end{tikzpicture}
% BOOK sheared
\begin{tikzpicture}
  \def\Dw{0.8} % sheared
  \coordinate (O) at (-\t/2-\t*\Dw/\H/2,-\t/2);
  \coordinate (T) at (-\t/2-\t*\Dw/\H/2,\H+\t/2);
  \coordinate (T') at (\Dw,\H+\t/2);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX