ABSTRACT
The failure data in units of kilocycles (kc) appear in Table 71.1 for a second set of 101 rectangular aluminum coupons (strips) that was periodically (18 cycles per second) loaded to failure at an increased stress of 31 kpsi [1,2]. Failures in Kilocycles (kc) for 101 Aluminum Strips (31 kpsi)
12
104
109
119
124
130
132
136
141
144
151
158
168
70
104
112
120
124
130
132
136
141
144
152
159
170
90
105
112
120
124
131
133
137
142
145
155
162
174
96
107
113
121
128
131
134
138
142
146
156
163
196
97
108
114
121
128
131
134
138
142
148
157
163
212
99
108
114
123
129
131
134
138
142
148
157
164
100
108
114
124
130
131
134
139
142
149
157
166
103
109
116
124
130
132
134
139
142
151
157
166
