He rips off his arm and places it in Herot. Grendel runs home and laters dies in his lair but his mother goes back to Herot to kill and gets away until Beowulf goes to her lair and cuts off her head. He does find Grendel, however he is already dead by that point.
Answer:
As to the physical how-
In the words of the actual poem (Seamus Heanley Translation), starting at line 815
" ... a tremendous wound appeared on his (Gendel's) shoulder. Sinews split and the bone lappings burst ... Grendel was driven under the fen-banks fatally hurt. to his desolate lair" After the battle with Grendel's mother Beowulf finds Grendel's body in the cave "... in its resting place ..." and beheads it. (Line 1580)
The symbolic how is diferent. Both Grenel and Beowulfrepresent the culture of the Vikings. Grendel the old ways with the worship of Odin and the other Aesir, Beowulf the new wave of Christianity coming to the land. Both are nearly invulnerable but Beowulf defeats Grendel as the new culture will overtake the old.
In the story of 'Beowulf the Warrior' Grendel is the very first monster that Beowulf encounters. After slaying Grendel, he destroys Grendel's mother and a dragon.
Beowulf kills Grendel's mother's son, Grendel, before preparing to fight her.
Grendel is able to kill 30 of Beowulf's men in the mead-hall, Heorot.
Beowulf kills Grendel's mother by using a sword on her.
Yes, Beowulf kills Grendel by ripping Grendel's arm off. After he loses his arm, Grendel flees to the forest back to his home to die there.
What is the name of the coastguard officer who takes Beowulf and his men to Hrothgar? ... How does Beowulf surprise Grendel? Beowulf pretends he is asleep and surprise attacks Grendel. Who does Beowulf watch Grendel kill and eat?
After Beowulf harms Grendel, the mother breaks into the hall to take his arm home. Beowulf is told by the king that htere are actually two monsters. Beowulf leaves at once to go underwater to kill Grendel's mother.
It is mentioned in the epic poem "Beowulf" that Grendel kills 30 geats in Hrothgar's hall, Heorot.
his sword
In Beowulf, the word "trap" refers to the underwater cave where Grendel's mother, a vicious creature, resides. Beowulf ventures into the trap to confront and defeat her in battle, in order to protect his people from her attacks.
After Beowulf kills Mother Grendel, Beowulf seeks Grendel and beheads the beast.Grendel's blood melts the sword.
While Grendel's mother is hard for Beowulf to defeat, he IS able to use a sword, where as he has to battle Grendel bare handed.