div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imagea href=https:reader043vdocumentssitereader043viewer20220407005d5407d888c99334268bcda0html5page1jpg target=_blank img data-url=international-journal-of-fracture-126-4146-2004-2004-rokacharticlesrokach2004apdfhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: International Journal of Fracture 126: 41–46 2004 © 2004 rokacharticlesrokach_2004apdf · It is easy to see that initial slope of DSIF during IPB stage solid arrow is loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader043vdocumentssitereader043viewer20220407005d5407d888c99334268bcda0html5thumbnails1jpg width=140 height=200 adivpInternational Journal of Fracture 126: 41–46 2004© 2004 Kluwer Academic Publishers Printed in the Netherlandsp ppdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imagea href=https:reader043vdocumentssitereader043viewer20220407005d5407d888c99334268bcda0html5page2jpg target=_blank img data-url=international-journal-of-fracture-126-4146-2004-2004-rokacharticlesrokach2004apdfhtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: International Journal of Fracture 126: 41–46 2004 © 2004 rokacharticlesrokach_2004apdf · It is easy to see that initial slope of DSIF during IPB stage solid arrow is loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader043vdocumentssitereader043viewer20220407005d5407d888c99334268bcda0html5thumbnails2jpg width=140 height=200 adivp42pdivdiv class=ts-pagebutton class=gotoPage data-page=3Page 3button div class=ts-imagea href=https:reader043vdocumentssitereader043viewer20220407005d5407d888c99334268bcda0html5page3jpg target=_blank img data-url=international-journal-of-fracture-126-4146-2004-2004-rokacharticlesrokach2004apdfhtmlpage=3 data-page=3 class=ts-thumb lazyload alt=Page 3: International Journal of Fracture 126: 41–46 2004 © 2004 rokacharticlesrokach_2004apdf · It is easy to see that initial slope of DSIF during IPB stage solid arrow is loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader043vdocumentssitereader043viewer20220407005d5407d888c99334268bcda0html5thumbnails3jpg width=140 height=200 adivp43pdivdiv class=ts-pagebutton class=gotoPage data-page=4Page 4button div class=ts-imagea href=https:reader043vdocumentssitereader043viewer20220407005d5407d888c99334268bcda0html5page4jpg target=_blank img data-url=international-journal-of-fracture-126-4146-2004-2004-rokacharticlesrokach2004apdfhtmlpage=4 data-page=4 class=ts-thumb lazyload alt=Page 4: International Journal of Fracture 126: 41–46 2004 © 2004 rokacharticlesrokach_2004apdf · It is easy to see that initial slope of DSIF during IPB stage solid arrow is loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader043vdocumentssitereader043viewer20220407005d5407d888c99334268bcda0html5thumbnails4jpg width=140 height=200 adivp44pdivdiv class=ts-pagebutton class=gotoPage data-page=5Page 5button div class=ts-imagea href=https:reader043vdocumentssitereader043viewer20220407005d5407d888c99334268bcda0html5page5jpg target=_blank img data-url=international-journal-of-fracture-126-4146-2004-2004-rokacharticlesrokach2004apdfhtmlpage=5 data-page=5 class=ts-thumb lazyload alt=Page 5: International Journal of Fracture 126: 41–46 2004 © 2004 rokacharticlesrokach_2004apdf · It is easy to see that initial slope of DSIF during IPB stage solid arrow is loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader043vdocumentssitereader043viewer20220407005d5407d888c99334268bcda0html5thumbnails5jpg width=140 height=200 adivp45pdivdiv class=ts-pagebutton class=gotoPage data-page=6Page 6button div class=ts-imagea href=https:reader043vdocumentssitereader043viewer20220407005d5407d888c99334268bcda0html5page6jpg target=_blank img data-url=international-journal-of-fracture-126-4146-2004-2004-rokacharticlesrokach2004apdfhtmlpage=6 data-page=6 class=ts-thumb lazyload alt=Page 6: International Journal of Fracture 126: 41–46 2004 © 2004 rokacharticlesrokach_2004apdf · It is easy to see that initial slope of DSIF during IPB stage solid arrow is loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader043vdocumentssitereader043viewer20220407005d5407d888c99334268bcda0html5thumbnails6jpg width=140 height=200 adivp46pdiv