M U N D A R I J A
I BOB.
KIRISH
1.1. M ateriallar q arsh ilig i fan i v a z if a la r i.............................................................................10
1.2. M ateriallar qarsh ilig i fa n in in g rivojlanish y o ‘l l a r i ................................................. 13
1.3. Inshootlar va ularning h iso b lash sxem alari. T a y a n c h la r...................................... 16
1.4. Y uklar ta s n if l........................................................................................................................19
1.5. Ichki kuchlar. K esish usuli. K u c h la n is h la r............................................................... 22
1.6. K onstruksiyalami hisoblashda m atritsalar nazariyasi va a m a liy o ti........................ 24
1.6.1. M atritsalar haq id a t u s h u n c h a ...................................................................................... 24
1.6.2. Materiallar qarshiligi m asalalarida uchraydigan matritsa v a v e k to rla r.................. 27
1.6.3. M atritsalar ustidagi a m a l l a r .........................................................................................30
II BOB. CHO‘ZILISH VA SIQILISH
2.1. C h o 'zilish v a siqilishda kuchlanish v a deform atsiyalar. G uk q o n u n i................... 35
2.2. S en-V enan p rinsipi h a q id a ............................................................................................... 40
2 .3. M ateriallam i c h o 'z ilis h g a s i n a s h ................................................................................... 41
2 .4. C h o ‘zilish diagram m asi va u n in g x arakterli n u q ta l a r i .......................................... 42
2.5. M ateriallarni siq ilish g a s i n a s h ........................................................................................46
2.6. M ateriallam in g qattiqligini aniqlash ............................................................................48
2.7. K u chlanishlar k o n se n tra tsiy a si........................................................................................49
2.8. R uxsat etilgan kuchlanishlar. K esim ta n la s h ............................................................ 50
2.9. X ususiy o g ’irlikni h iso b g a o l i s h ...................................................................................59
2 .1 0 . C h o 'z ilish v a siq ilish d a statik noaniq m a s a la la r.................................................. 63
2 .11. T em p eratu ra (harorat) o ‘zgarishidan
hosil boMadigan
k u c h la n is h la r................................................................................................................................. 66
2.12. Sterjenlarni ch o ‘ziIish v a siq ilish g a hisoblashni o ‘rgatuvchi
k o m p y u ter tex n o lo g iy a si............................................................................................................68
III BOB. KESIM YUZALARINING GEOMETRIK
TAVSIFLARI
3.1. G eom etrik ta v s ifla r............................................................................................................. 75
3.2. Parallel o ‘qlarga nisb atan inersiya m om entlari o rasidagi b o gM anish...............81
3.3. O 'q la r burilganda inersiya m om entlari orasidagi b o g 'la n is h .............................. 82
3 .4. K o 'n d a la n g kesim lardagi asosiy o ‘q lar, bosh in ersiy a o ‘qlari v a
bosh inersiya m o m e n tla r i..........................................................................................................83
3 .5. In ersiy a ellipsi v a u n in g xossalari ............................................................................... 86
3 .6. T ek is y u zala rn in g geo m etrik tav siflarin i k o m p y u terd a
h iso b la sh a lg o r itm i...................................................................................................................... 86