Franck Bayle - Product Maturity, Volume 2

5 Chapter 6Table 6.1. Examples of various cases of Weibull law combinationsTable 6.2. Boundaries of β parameter of a PLP modelTable 6.3. Boundaries of parameter β of a PLP modelTable 6.4. Delivery flow and number of observed failuresTable 6.5. Delivery flow and number of observed failuresTable 6.6. Scoreboard of burn-in effectivenessTable 6.7. Example of evolution of the number of failures

1 Cover

2 Table of Contents

3 Title Page Reliability of Multiphysical Systems Set coordinated by Abdelkhalak El Hami Volume 13

4 Copyright First published 2022 in Great Britain and the United States by ISTE Ltd and John Wiley & Sons, Inc. Apart from any fair dealing for the purposes of research or private study, or criticism or review, as permitted under the Copyright, Designs and Patents Act 1988, this publication may only be reproduced, stored or transmitted, in any form or by any means, with the prior permission in writing of the publishers, or in the case of reprographic reproduction in accordance with the terms and licenses issued by the CLA. Enquiries concerning reproduction outside these terms should be sent to the publishers at the undermentioned address: ISTE Ltd 27-37 St George’s Road London SW19 4EU UK www.iste.co.uk John Wiley & Sons, Inc. 111 River Street Hoboken, NJ 07030 USA www.wiley.co © ISTE Ltd 2022 The rights of Franck Bayle to be identified as the author of this work have been asserted by him in accordance with the Copyright, Designs and Patents Act 1988. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s), contributor(s) or editor(s) and do not necessarily reflect the views of ISTE Group. Library of Congress Control Number: 2021952701 British Library Cataloguing-in-Publication Data A CIP record for this book is available from the British Library ISBN 978-1-78630-740-8

5 Foreword by Laurent Denis

6 Foreword by Serge Zaninotti

7 Acknowledgements

8 Introduction

9 Begin Reading

10 List of Notations

11 List of Definitions

12 List of Acronyms

13 References

14 Index

15 Other titles from iSTE in Mechanical Engineering and Solid Mechanics

16 End User License Agreement

1 v

2 iii

3 iv

4 ix

5 x

6 xi

7 xiii

8 xiv

9 xv

10 xvii

11 xviii

12 1

13 2

14 3

15 4

16 5

17 6

18 7

19 8

20 9

21 10

22 11

23 13

24 14

25 15

26 16

27 17

28 18

29 19

30 20

31 21

32 22

33 23

34 24

35 25

36 26

37 27

38 28

39 29

40 30

41 31

42 32

43 33

44 34

45 35

46 36

47 37

48 38

49 39

50 40

51 41

52 42

53 43

54 44

55 45

56 46

57 47

58 48

59 49

60 50

61 51

62 52

63 53

64 54

65 55

66 56

67 57

68 58

69 59

70 60

71 61

72 62

73 63

74 64

75 65

76 66

77 67

78 68

79 69

80 70

81 71

82 72

83 73

84 74

85 75

86 76

87 77

88 79

89 80

90 81

91 82

92 83

93 84

94 85

95 86

96 87

97 88

98 89

99 90

100 91

101 92

102 93

103 94

104 95

105 96

106 97

107 98

108 99

109 100

110 101

111 102

112 103

113 104

114 105

115 106

116 107

117 108

118 109

119 110

120 111

121 112

122 113

123 114

124 115

125 116

126 117

127 118

128 119

129 120

130 121

131 122

132 123

133 124

134 125

135 126

136 127

137 128

138 129

139 130

140 131

141 132

142 133

143 134

144 135

145 136

146 137

147 139

148 140

149 141

150 142

151 143

152 144

153 145

154 147

155 148

156 149

157 151

158 152

159 153

160 154

161 155

162 157

163 158

164 159

165 160

166 161

167 162

168 163

169 164

170 165

171 166

Reliability of Multiphysical Systems Set

coordinated by

Abdelkhalak El Hami

Volume 13

Franck Bayle

First published 2022 in Great Britain and the United States by ISTE Ltd and John Wiley & Sons, Inc.

Apart from any fair dealing for the purposes of research or private study, or criticism or review, as permitted under the Copyright, Designs and Patents Act 1988, this publication may only be reproduced, stored or transmitted, in any form or by any means, with the prior permission in writing of the publishers, or in the case of reprographic reproduction in accordance with the terms and licenses issued by the CLA. Enquiries concerning reproduction outside these terms should be sent to the publishers at the undermentioned address:

ISTE Ltd

27-37 St George’s Road

London SW19 4EU

UK

www.iste.co.uk

John Wiley & Sons, Inc.

111 River Street

Hoboken, NJ 07030

USA

www.wiley.co

© ISTE Ltd 2022

The rights of Franck Bayle to be identified as the author of this work have been asserted by him in accordance with the Copyright, Designs and Patents Act 1988.

Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s), contributor(s) or editor(s) and do not necessarily reflect the views of ISTE Group.

Library of Congress Control Number: 2021952701

British Library Cataloguing-in-Publication Data

A CIP record for this book is available from the British Library

ISBN 978-1-78630-740-8

Human beings are plagued by major worries, such as fear of death and fear of illness. “How long will I live?” is a question that arises even in childhood. “Will I one day have to deal with a condition similar to my neighbor’s?”. We live in an age where disease, death, old age and disability are subjects to be avoided in polite conversation. “How are you?” is a standard greeting to which a different and darker reply than the traditional, “I’m very well, thank you, and you?” risks embarrassing or even annoying the other party. Avoiding the problems of others, for fear they may be contagious, gives us a sense of immortality on a daily basis.

This is a rather recent phenomenon, as many previous generations did not hide the elderly or sick, although the risk of accidents in everyday life was higher and so death was a more common occurrence. It was certainly a source of anxiety, but the Church was there to alleviate it. Today we hide this subject by paying attention to a society made up of young, healthy people whom we must emulate at all costs so as to be part of it. Since our days are more or less the same, we succumb to procrastination at the first opportunity and Seneca’s carpe diem loses its wonderful charm to give way to flat Platonic reflection.

Surprisingly, a similar problem exists in industry: there is a willingness to forget that a product may be subject to failure during its lifetime, given it has been optimally designed for the required functions. Some simple principles of upstream reliability analysis, from the design phase onwards, are now well-established, but they thwart the deep-seated notion that proper design outweighs everything else. Two essential points are overlooked: when a technology naturally reaches maturity, only a technological breakthrough can mark a distinction between two products performing the same function, unless it can be demonstrated that product A will last longer and be safer than product B. Moreover, the uses of the same product can multiply according to its ability to adapt to multiple environments. A good understanding of these uses in the field makes it possible to improve robustness properly at the design stage, in order that it can withstand any mission profile assigned to it during operation; this is one way to increase competitiveness.